Guadalupe Ortiz de Landazuri was born in Madrid, on the feast of Our Lady of Guadalupe, 12 December 1916. In 1944, she met Saint Josemaria and eventually decided to dedicate her life to finding God in her professional work, sharing the conviction that everyone is called to be a saint.

Ever since meeting Saint Josemaria in 1944, Guadalupe Ortiz decided to dedicate her life to a single project: seeking sanctity in the middle of the world. A Doctor in Chemistry, she discovered the adventure of the Christian life, and helped many others to do the same, through her work, and with faith and optimism.